Warrants (Tables)

12 Months Ended

Dec. 31, 2017

Capital Stock and Warrants [Abstract]

At December 31, 2017, outstanding warrants to purchase shares of common stock, accounted for as equity or liabilities, are as follows:



Shares Underlying
Outstanding	Exercise		Expiration
Warrants	Price		Date

19,691	$	70.00		February 4 to July 15, 2018
8,640	$	82.50		December 23, 2018
8,492	$	120.00		December 31, 2018
8,492	$	120.00		March 1, 2019
41,872	$	107.50		March 16, 2020
31,519	$	40.50		March 31, 2021
106,381	$	22.50		June 3, 2021
306,831	$	0.57		November 22, 2021
8,000,000	$	1.50		May 10, 2022
8,531,918

- Definition

Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable.

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